I've tried that, but that didn't worked at all
Problem permanently solved anyway, the latest kernel version 2.6.6 has support for the TG3 (again)
After a clean kernel update the tg3 is recognized as a module and performs well.
Now my nc6000 is finally working like it should be (actually already did since 2.6.5 , read my earlier post), since acpi was taken care of in 2.6.5. the 5700 was my only concern.
Still heading for the intel 2100 wireless to get that up and running but i am not using that anyway so nothing to hurry yet.